New GC related APIs: Implicit references.

test/cctest/test-heap-profiler.cc

Index: test/cctest/test-heap-profiler.cc
diff --git a/test/cctest/test-heap-profiler.cc b/test/cctest/test-heap-profiler.cc
index 32344420f4ae918af4ab66bb13b5ce338d691394..42598723149040b188f94d67089b926cd0cd986a 100644
--- a/test/cctest/test-heap-profiler.cc
+++ b/test/cctest/test-heap-profiler.cc
@@ -1191,9 +1191,10 @@ class GraphWithImplicitRefs {
   explicit GraphWithImplicitRefs(LocalContext* env) {
     CHECK_EQ(NULL, instance_);
     instance_ = this;
-    v8::Isolate* isolate = (*env)->GetIsolate();
+    isolate_ = (*env)->GetIsolate();
     for (int i = 0; i < kObjectsCount; i++) {
-      objects_[i] = v8::Persistent<v8::Object>::New(isolate, v8::Object::New());
+      objects_[i] =
+          v8::Persistent<v8::Object>::New(isolate_, v8::Object::New());
     }
     (*env)->Global()->Set(v8_str("root_object"), objects_[0]);
   }
@@ -1208,15 +1209,35 @@ class GraphWithImplicitRefs {
  private:
   void AddImplicitReferences() {
     // 0 -> 1
-    v8::V8::AddImplicitReferences(
-        v8::Persistent<v8::Object>::Cast(objects_[0]), &objects_[1], 1);
+    v8::V8::SetObjectGroupId(isolate_,
+                             v8::Persistent<v8::Object>::Cast(objects_[0]),
+                             v8::UniqueId(1));
+    v8::V8::SetObjectGroupRepresentative(
+        isolate_,
+        v8::UniqueId(1),
+        v8::Persistent<v8::Object>::Cast(objects_[0]));
+    v8::V8::AddImplicitReference(isolate_,
+                                 v8::UniqueId(1),
+                                 v8::Persistent<v8::Object>::Cast(objects_[1]));
     // Adding two more references(note length=2 in params): 1 -> 2, 1 -> 3
-    v8::V8::AddImplicitReferences(
-        v8::Persistent<v8::Object>::Cast(objects_[1]), &objects_[2], 2);
+    v8::V8::SetObjectGroupId(isolate_,
+                             v8::Persistent<v8::Object>::Cast(objects_[1]),
+                             v8::UniqueId(2));
+    v8::V8::SetObjectGroupRepresentative(
+        isolate_,
+        v8::UniqueId(2),
+        v8::Persistent<v8::Object>::Cast(objects_[1]));
+    v8::V8::AddImplicitReference(isolate_,
+                                 v8::UniqueId(2),
+                                 v8::Persistent<v8::Object>::Cast(objects_[2]));
+    v8::V8::AddImplicitReference(isolate_,
+                                 v8::UniqueId(2),
+                                 v8::Persistent<v8::Object>::Cast(objects_[3]));
   }
 
   v8::Persistent<v8::Value> objects_[kObjectsCount];
   static GraphWithImplicitRefs* instance_;
+  v8::Isolate* isolate_;
 };
 
 GraphWithImplicitRefs* GraphWithImplicitRefs::instance_ = NULL;